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max

Friday

Ford F350 heater blows cool air?

It sounds like your climate control is not changing the blend door over to heat. I would inspect for a broken vacum hose somewhere. The blend door in your vehicle needs all vacum hoses to not be leaking in order to switch over.

Check to see if the blend door is moving where you change the temperature setting. I think your blend door is behind the glove box. Here are instructions for removing the actuator. Take it off, plug it back in and see if the motor rotates. Also check to see if you can rotate the blend door by hand. If you can rotate it by hand, the motor is probably broken of the gears are stripped. Let me know if you have questions.